US Bridges

James S Mcdonnell over Coldwater Crk

Good

St. Louis County, Missouri · S 5 T 46 N R 6 E · Structure no. 37011

Built
2023
2 years old
Condition
Good
inspected May 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
132 ft
2 main spans
Daily traffic
10,699
2023 count
Owner
County
County Highway Agency

About this bridge

James S Mcdonnell over Coldwater Crk is a prestressed concrete continuous tee beam carrying James S Mcdonnell over Coldwater Crk in St. Louis County, Missouri. It was built in 2023, so it is 2 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: new structure not yet open to traffic.

It carries about 10,699 vehicles a day, roughly 10% of them trucks, projected to reach 14,444 by 2043. The structure is 132 ft (40.2 m) long and 59 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesJames S Mcdonnell
CrossesColdwater Crk
LocationS 5 T 46 N R 6 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.75999, -90.36078
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusNew structure not yet open to traffic
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating47.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length132 ft (40.2 m)
Longest span64 ft (19.5 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,699 (2023)
Projected traffic14,444 by 2043
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was James S Mcdonnell over Coldwater Crk built?

It was built in 2023, making it 2 years old in 2025.

What condition is James S Mcdonnell over Coldwater Crk in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does James S Mcdonnell over Coldwater Crk carry?

About 10,699 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is James S Mcdonnell over Coldwater Crk?

The structure is 132 ft (40.2 m) long with a longest span of 64 ft (19.5 m) and a deck 59 ft wide.

Who owns James S Mcdonnell over Coldwater Crk?

It is owned by the County Highway Agency.